Section 2 - Installation; Specifications; Dimensions And Weight; Duty Cycle And Overheating - Hobart AirForce 750 Owner's Manual

2-1. Specifications

Amperes Input at Rated Load
Output 60 Hz
Model Model
200 V 230 V
Single- 42.30 36.80
Phase (3.40*) (2.95*)
18.40
3-Phase ––
(2.13*)
*While idling

2-2. Dimensions And Weight

2-3. Duty Cycle And Overheating

60% Duty Cycle
6 Minutes Cutting
Overheating
SECTION 2 – INSTALLATION
460 V 575 V KVA
18.40 8.49
––
(1.50*) (0.68*)
9.20 7.40 7.32
(1.07*) (0.85*) (0.85*)
C
B
4 Minutes Resting
0
Minutes
Type of Plasma
Output Gas
KW
6.55
Direct
(0.20*) Current, Air Or
Straight Nitrogen
6.60
Only
Polarity
(0.32*)
(DCEN)
A A
Ref. 801 454-C
15
Reduce Duty Cycle
Rated
Rated
Cutting Cutting
Output
Capacity
50 A @
0.7 in
110 Volts 110 Volts
(18 mm)
DC, 60%
At 10 IPM
Duty Cycle
Dimensions
A 36-3/4 in (934 mm)
B 24-1/2 in (622 mm)
C 21 in (533 mm)
Weight
Single-Phase Models: 147 lb (66 kg)*
Three-Phase Models: 168 lb (76 kg)*
*Without Torch
Duty Cycle is percentage of 10 min-
utes that unit can cut at rated load
without overheating.
If unit overheats, thermostat(s)
opens, output stops, and cooling
fan runs. Wait fifteen minutes for
unit to cool. Reduce amperage or
duty cycle before cutting.
Y Exceeding duty cycle can
damage unit and void war-
ranty.
A
OR
OM-279 Page 9
Maximum
Open-
Circuit Circuit
Voltage
DC
280
duty1 4/95